Foreword
Google has officially completed the rollout of its March 2026 Core Algorithm Update. If you've noticed any fluctuations in your search rankings or organic traffic over the past couple of weeks, this is likely why.
Google rolls out broad core algorithm updates roughly three times a year. Unlike the smaller, day-to-day algorithm tweaks that happen constantly in the background, core updates are designed to make more significant improvements to how Google surfaces relevant, high-quality content across its search results globally.
These updates tend to cause noticeable volatility in rankings, with sites moving up or down considerably, so they're always worth paying attention to.
The Timeline
This update was Google's first broad ranking update of 2026. Here's how it played out:
Google described this as "a regular update designed to better surface relevant, satisfying content for searchers from all types of sites." In short, it's about rewarding content that is genuinely helpful, trustworthy, and created with users in mind rather than for search engines.
Now that the rollout is complete, the dust has settled enough to properly assess the impact. Here's what we'd recommend:
1. Review your traffic data
Look at your organic traffic and rankings from 27th March onwards. Have specific pages or keyword groups dropped? Have any improved? Identifying clear winners and losers is the first step.
2. Don't panic over drops
Google's own guidance is clear that a ranking drop doesn't necessarily mean something is wrong with your site. Core updates often re-evaluate content quality broadly, and recovery can come with future updates rather than requiring an immediate fix.
3. Focus on content quality
Google consistently points to the same principles: helpful, reliable, people-first content. If pages have declined, it's worth auditing whether they genuinely serve the user's intent, or whether they've been optimised more for search engines than for real readers.
4. Prioritise high-value keywords
If specific keywords have dropped in position, identify the ones with the highest search volume and work on a strategy to reclaim that visibility.
Core updates are a normal part of the SEO landscape. They require both a proactive and reactive response. On the reactive side, assessing keyword drops and focusing optimisations around those areas based on their value is simply the nature of SEO. On the proactive side, whilst we can't predict exactly when Google will release these updates, consistent implementation of quality content is the most reliable way to weather them. As a rule of thumb, sites that maintain high content standards and strengthen the areas where they've seen a decline in organic performance are the ones best placed to see a positive uplift when the next update arrives.
If you're unsure how this update has affected your site, get in touch with us. We're already reviewing performance data for our clients and would be happy to talk through what we're seeing.
